A US judge has once again blocked President Donald Trump from implementing an executive order ending birthright citizenship for some US residents as a legal challenge moves forward.

A New Hampshire judge approved a class action lawsuit against Trump's executive order, and temporarily stopped the president's order from taking effect.

The class action lawsuit was brought by the American Civil Liberties Union on behalf of immigrant parents and their infants.

The decision comes weeks after the Supreme Court introduced limits on how and when universal injunctions are issued by federal courts. However, the decision still allows them through certain legal avenues.

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